QUICK ANSWERStart with the tool that matches your immediate input.
Open Priority Matrix Builder first when its stated purpose matches the result you need now. Use Routine Builder only when it solves a separate next task.
This guide is for professionals, students, managers, and busy households. Start with Priority Matrix Builder when your immediate task is to turn your input into a structured priority matrix you can review and use. Move to Routine Builder only when you also need to turn your input into a structured routine you can review and use.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether Routine Builder solves a genuinely different next step.
Both tools sit in Productivity & Planning, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.